CVE-2025-47154

CRITICAL

Ladybird < f5a670421954fc7130c3685b713c621b29516669 - Use-After-Free in LibJS Arguments List Handling

Title source: llm
STIX 2.1

Description

LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references, leading to a use-after-free, and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says "Ladybird is in a pre-alpha state, and only suitable for use by developers."

References (3)

Core 3

Scores

CVSS v3 9.0
EPSS 0.0059
EPSS Percentile 44.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-820
Status published
Products (1)
Ladybird/Ladybird < f5a670421954fc7130c3685b713c621b29516669
Published May 01, 2025
Tracked Since Feb 18, 2026